Large-scale battery storage in Karstädt ensures grid stability and market revenues

The stand-alone battery storage facility in Karstädt strengthens Obton A/S’s regional grid stability while also benefiting from market-optimised flexibility trading. The BESS has a power capacity of 20.7 MW and an energy capacity of 35 MWh and is traded by Entelios on several short-term markets such as the intraday and balancing energy markets.

Thanks to its medium-voltage grid connection (20 kV) and its geographical location in the 50Hertz control area, the storage facility is optimally integrated into the German electricity grid. The focus is on data-based cross-market optimisation, which allows the available flexibility to be used specifically where it offers the highest added value – for the grid, the market and the operator.